Granted Patent
Utility
US 4,491,955 · App. 06/393,941
Fluid flow and ash concentration meter system using Mossbauer effect
Inventor:
Paul H. Kydd
Patented Case
View Patent ↗
Granted: Jan 1, 1985
Filed: Jun 30, 1982
Inventor
Paul H. Kydd
Assignee (at issue)
HRI
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.